acidity

n. state or quality of being acid; sourness, tartness; increase in the production of acid

In computer science, ACID (Atomicity, Consistency, Isolation, Durability) is a set of properties that guarantee that database transactions are processed reliably. In the context of databases, a single logical operation on the data is called a transaction.An example of a transaction is a transfer of funds from one account to another, even though it might consist of multiple individual operations (such as debiting one account and crediting another).
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ACiD Productions (ACiD) is an underground digital art group. Founded in 1990, the group originally specialized in ANSI artwork for BBSes. More recently, they have extended their reach into other graphical media and computer software development.
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An acid (often represented by the generic formula HA [H+A-]) is traditionally considered any chemical compound that, when dissolved in water, gives a solution with a pH less than 7.0. That approximates the modern definition of Johannes Nicolaus Brønsted and Martin Lowry, who independently defined an acid as a compound which donates a hydrogen ion (H+) to another compound (called a base). Common examples include acetic acid (in vinegar) and sulfuric acid (used in car batteries). Acid/base systems are different from redox reactions in that there is no change in oxidation state. Generally, acids have the following properties:Taste:Acids often taste sourTouch: Strong or concentrated acids often produce a stinging feeling on mucous membranesReactivity: Strong acids react aggressively with or corrode many metals Electrical conductivity: Acids, while not usually ionic compounds, are electrolytesAcids turn moist blue litmus paper red
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Acidity /acid·i·ty/ the quality of being acid; the power to unite with positively charged ions or with basic substances. a·cid·i·ty n. [more]Acidity - Community and Resources

Noun
1. the property of being acidic
(synonym) sourness, sour
(hypernym) taste property
(hyponym) acerbity, tartness
2. the taste experience when something acidic is taken into the mouth
(synonym) acidulousness
(hypernym) sour, sourness, tartness
3. pH values below 7
(antonym) alkalinity
(hypernym) pH, pH scale
(hyponym) hyperacidity

(n.)
The quality of being sour; sourness; tartness; sharpness to the taste; as, the acidity of lemon juice.